Water always boils when its

1.	Water always boils when its
A.	temperature reaches 100¬∞ C.
B.	vapour pressure equals 76 cm of Hg.
C.	saturated vapour pressure equals the external pressure on its surface.
D.	saturated vapour pressure is less than the atmospheric pressure.
Answer» D. saturated vapour pressure is less than the atmospheric pressure.

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Water always boils when its

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